During a handover to the head of counter-terrorism of MI5, Harry Pearce, a terrorist escapes custody. When Harry disappears soon after, his protégé is tasked with finding out what happened as an ...

A store clerk and an ice cream truck driver are thrown together when a dying scientist entrusts them with a deadly chemical kept in ice. This chemical will kill every living thing once it melts. ...

Tense drama series about the different challenges faced by the British Security Service as they work against the clock to safeguard the nation. The title is a popular colloquialism for spies, and ...